question_answer

In vulcanisation of rubber,

A)  tensile strength, elasticity and resistance can be decreases

B)  tensile strength, elasticity and resistance can be increases

C)  sulphur forms a very thin protective layer

D)  None of the above

Correct Answer: B

Solution :

                In vulcanisation of rubber, sulphur cross-linked at the reactive sites of double bonds due to which tensile strength, elasticity and resistance to abrasion of rubber, increases.